Base | Representation |
---|---|
bin | 101001001000101… |
… | …0111011101000001 |
3 | 10120012020200222222 |
4 | 1102101113131001 |
5 | 10311323043400 |
6 | 344544140425 |
7 | 46130136155 |
oct | 12221273501 |
9 | 3505220888 |
10 | 1380284225 |
11 | 649152a71 |
12 | 326307715 |
13 | 18cc67838 |
14 | d145d065 |
15 | 8129d185 |
hex | 52457741 |
1380284225 has 12 divisors (see below), whose sum is σ = 1721806464. Its totient is φ = 1097611920.
The previous prime is 1380284209. The next prime is 1380284231. The reversal of 1380284225 is 5224820831.
It is not a de Polignac number, because 1380284225 - 24 = 1380284209 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161129 + ... + 169478.
It is an arithmetic number, because the mean of its divisors is an integer number (143483872).
Almost surely, 21380284225 is an apocalyptic number.
It is an amenable number.
1380284225 is a deficient number, since it is larger than the sum of its proper divisors (341522239).
1380284225 is a wasteful number, since it uses less digits than its factorization.
1380284225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 330784 (or 330779 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 35.
The square root of 1380284225 is about 37152.1765849593. The cubic root of 1380284225 is about 1113.4127105747.
The spelling of 1380284225 in words is "one billion, three hundred eighty million, two hundred eighty-four thousand, two hundred twenty-five".
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